
Article 1 
The products and families of products set out in Annex I shall have their conformity attested by a procedure whereby the manufacturer has under its sole responsibility a factory-production control system ensuring that the product is in conformity with the relevant technical specifications.
Article 2 
The products set out in Annex II shall have their conformity attested by a procedure whereby, in addition to a factory-production control system operated by the manufacturer, an approved certification body is involved in assessment and surveillance of the production control or of the product itself.
Article 3 
The procedure for attesting conformity as set out in Annex III shall be indicated in mandates for guidelines for European technical approvals.
Article 4 
This Decision is addressed to the Member States.
Done at Brussels, 25 January 1999.
For the Commission
Martin BANGEMANN
Member of the Commission
ANNEX I

Precast normal/lightweight/autoclaved aerated concrete products:

— Intended for light structural or non-structural use (in particular, boundary fences, junction boxes for telecommunications, small box culverts, non-loadbearing wall elements and cladding elements).

ANNEX II

Precast normal/lightweight/autoclaved aerated concrete products:

— Intended for structural use (in particular prestressed hollow core floor elements, posts and masts, foundation piles, shuttering slabs, lattice girder elements, beam/block floor units and elements, ribbed floor slabs, linear structural elements (beams and columns), load-bearing wall elements, retaining wall elements, roof elements, silos, stairs, bridge deck elements and large box culverts).

ANNEX III 1. 
For the product(s) and intended use(s) listed below, CEN/Cenelec are requested to specify the following system(s) of attestation of conformity in the relevant harmonised standard(s):


Product(s) Intended use(s) Level(s) or class(es) Attestation of conformity system(s)
Precast normal/lightweight/autoclaved aerated concrete products for structural use—for non-structural or light structural use ——— 2 +—4

System 2 +: See Directive 89/106/EEC, Annex III(2)(ii), First possibility, including certification of the factory production control by an approved body on the basis of initial inspection of factory and of factory production control as well as of continuous surveillance assessment and approval of factory production control.System 4: See Directive 89/106/EEC, Annex III(2)(ii), Third possibility.

The specification for the system should be such that it can be implemented even where performance does not need to be determined for a certain characteristic, because at least one Member State has no legal requirement at all for such characteristic (see Article 2(1) of Directive 89/106/EEC and, where applicable, point 1.2.3. of the Interpretative Documents). In those cases the verification of such a characteristic must not be imposed on the manufacturer if he does not wish to declare the performance of the product in that respect.
